WO2007004190A2 - Lampe fluorescente a energie efficace - Google Patents

Lampe fluorescente a energie efficace Download PDF

Info

Publication number
WO2007004190A2
WO2007004190A2 PCT/IB2006/052228 IB2006052228W WO2007004190A2 WO 2007004190 A2 WO2007004190 A2 WO 2007004190A2 IB 2006052228 W IB2006052228 W IB 2006052228W WO 2007004190 A2 WO2007004190 A2 WO 2007004190A2
Authority
WO
WIPO (PCT)
Prior art keywords
lamp
fluorescent lamp
power
fluorescent
light output
Prior art date
Application number
PCT/IB2006/052228
Other languages
English (en)
Other versions
WO2007004190A3 (fr
Inventor
Pieter Weijs
Leendert H. Goud
Jos Van Meurs
Renatus W. C. Van Der Veeken
Lukas Kastelein
Jacobus M. M. Claassens
Original Assignee
Koninklijke Philips Electronics N.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Priority to EP06765988A priority Critical patent/EP1905282A2/fr
Priority to US11/994,536 priority patent/US20090058312A1/en
Priority to JP2008520037A priority patent/JP2009517803A/ja
Publication of WO2007004190A2 publication Critical patent/WO2007004190A2/fr
Publication of WO2007004190A3 publication Critical patent/WO2007004190A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/357—Driver circuits specially adapted for retrofit LED light sources
    • H05B45/3578—Emulating the electrical or functional characteristics of discharge lamps
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/31—Phase-control circuits

Definitions

  • the lamp according to the present invention as described in claim 1 achieves the above object by advantageously using improved fluorescent coatings to decrease the power consumption.
  • the power-saving electronics decrease the power consumption and thereby the light output level, but due to the improved fluorescent coating, the light output may be kept on a conventional light output level.
  • a fluorescent coating In a fluorescent lamp, a fluorescent coating is irradiated with generated radiation, which is invisible to humans. The invisible radiation is converted to visible radiation, i.e. light, by the fluorescent coating.
  • the fluorescent coatings used in fluorescent lamps have been improved over recent years. Due to the improvement in fluorescent coatings, the fluorescent coating outputs more visible light, when absorbing the same amount of radiation. Thus, the light output of fluorescent lamps has significantly increased. To the improved fluorescent coatings may be referred as high efficiency fluorescent coatings.
  • the lamp may consume less power.
  • the power saving electronics comprises a switching circuit, e.g. a TRIAC dimmer circuit, connected in series with electrodes of the fluorescent lamp.
  • the switching circuit is configured to interrupt an energy flow to the discharge vessel during a relatively short period, e.g. a short period per cycle or half-cycle of an AC supply voltage.
  • a TRIAC dimmer circuit is such a switching circuit well known in the art and may be cost- effectively manufactured and built-in into a conventional lamp housing, thereby enabling to retrofit the inventive lamp in existing electromagnetic lamp systems.
  • the power-saving circuitry is connected between a ballast circuit and electrodes provided in the discharge vessel. Fluorescent lamps are usually operated using a ballast circuit for limiting the lamp current.
  • Such a ballast circuit is usually separately provided. In operation, a discharge arc is present between the electrodes. Thereby, the desired radiation for exciting the fluorescent coating is generated. Connecting the power- saving circuitry between the ballast circuit and the electrodes enables to provide the power- saving circuitry within a casing of the fluorescent lamp.
  • the energy efficient lamp may replace conventional lamps without changes to the lighting system, providing a conventional light output, but consuming less power.
  • Fig. 1 shows an embodiment of a fluorescent lamp according to the present invention connected to a ballast
  • Fig. 2 shows a schematic view of a power-saving circuitry for use in a fluorescent lamp according to the present invention
  • Fig. 3 shows a schematic view of a lamp unit according to the present invention comprising two anti-parallel strings of LEDs, power-saving circuitry and connector pins
  • Fig. 4 shows a schematic view of a lamp unit according to the present invention comprising a single string of LEDs, a rectifier, power-saving circuitry and connector pins.
  • Fig. 1 illustrates a fluorescent lamp 18 (also called lamp unit) connected to a ballast 19 having two supply terminals 11, 12 for receiving a supply voltage.
  • the fluorescent lamp or comprises a power-saving circuit 13 and a discharge vessel 14.
  • 15 is a starter circuit connected across the discharge vessel.
  • the discharge vessel 14 is filled with a suitable gas mixture such that a discharge current may be generated between the electrodes 16, 17.
  • a fluorescent coating is provided on an inner surface of the discharge vessel 14 .
  • the combination of the fluorescent coating and the gas mixture is such that a high light output level may be generated.
  • the starter circuit 15 may as well be integrated into the lamp unit.
  • the dotted line 19 indicates a suitable ballast for operating the fluorescent lamp 1, for example comprising an inductor 19a and optionally a capacitor 19b connected in parallel with the lamp unit 18 and the inductor 19a.
  • Fig. 2 illustrates an example of suitable embodiment of a power-saving circuit 13 comprising a TRIAC dimmer circuit.
  • a TRIAC dimmer circuit is known in the art for dimming a number of kinds of lamps.
  • the TRIAC dimmer circuit comprises a TRIAC 21 shunted by a series connection of a capacitor 22 and a resistor 23 possibly split in a resistor 23a having an adjustable resistance and a resistor 23b having a predetermined resistance. Between a control terminal of the TRIAC 21 a node Nl between the resistor 23 and the capacitor 22 a series connection of a resistor 24 and a DIAC 25 is connected.
  • the TRIAC dimmer circuit is configured to block an AC current during a part of a half cycle of the AC current.
  • the resistor 23 comprises a resistor 23a having an adjustable resistance. Adjusting the resistance of resistor 23 results in adjusting the light output of a lamp connected to the TRIAC dimmer circuit.
  • the resistance of resistor 23 may be predetermined to provide a predetermined light output level.
  • the fluorescent coating of the lamp 1 is a high efficiency fluorescent coating, e.g. an efficient phosphorus coating, such that with a conventional nominal power consumption, more light is output compared to the light output of a conventional fluorescent lamp.
  • the fluorescent lamp 1 is provided with the power-saving circuit 13, thereby lowering the light output.
  • the power-saving circuit 13 may be configured such that in operation at least the light output level of a conventional lamp is obtained.
  • the circuit 13 shown in Fig. 2 is a suitable power-saving circuit 13.
  • the light output level of the lamp 1 is predetermined by selecting the resistance of resistor 23 and the capacitance of capacitor 22.
  • the fluorescent lamp 1 in accordance with the present invention is usable in common conventional electromagnetic lamp systems, not requiring dedicated lamp systems.
  • the discharge vessel 14 and the starter circuit 15 may be replaced by two anti-parallel strings of LEDs, as is shown in Fig. 3.
  • the discharge vessel 14 and the starter circuit 15 may be replaced by a rectifier and a single string of LEDs as shown in Fig. 4.
  • the lamp unit is further equipped with connection pins and so dimensioned that the lamp unit can be used as a retrofit lamp for a conventional fluorescent lamp.
  • Figures 3 and 4 both show such a lamp unit.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)

Abstract

Aux fins de diminuer la consommation de puissance d'une lampes fluorescente, cette lampe fluorescent est pourvue d'un revêtement fluorescent de haute efficacité, générant plus de lumière lors de la réception d'une quantité de rayonnement classique. Diminuer la puissance fournie à la lampe diminue le rayonnement fourni au revêtement fluorescent et par conséquent, diminue la lumière produite en sortie de cette lampe. Du fait de l'augmentation de la sortie lumineuse du revêtement fluorescent, le niveau de sortie lumineuse de cette lampe fluorescente peut être sensiblement conservé au niveau de sortie lumineuse d'une lampe classique.
PCT/IB2006/052228 2005-07-06 2006-07-03 Lampe fluorescente a energie efficace WO2007004190A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP06765988A EP1905282A2 (fr) 2005-07-06 2006-07-03 Lampe fluorescente a energie efficace
US11/994,536 US20090058312A1 (en) 2005-07-06 2006-07-03 Energy efficient fluorescent lamp
JP2008520037A JP2009517803A (ja) 2005-07-06 2006-07-03 エネルギー効率の良い蛍光ランプ

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP05106120.8 2005-07-06
EP05106120 2005-07-06
EP05106875.7 2005-07-26
EP05106875 2005-07-26

Publications (2)

Publication Number Publication Date
WO2007004190A2 true WO2007004190A2 (fr) 2007-01-11
WO2007004190A3 WO2007004190A3 (fr) 2007-05-03

Family

ID=37533545

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/052228 WO2007004190A2 (fr) 2005-07-06 2006-07-03 Lampe fluorescente a energie efficace

Country Status (4)

Country Link
US (1) US20090058312A1 (fr)
EP (1) EP1905282A2 (fr)
JP (1) JP2009517803A (fr)
WO (1) WO2007004190A2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011009423A1 (fr) * 2009-07-21 2011-01-27 Paetzold Andre Corps d’éclairage
WO2012131367A1 (fr) * 2011-03-31 2012-10-04 Litonics Limited Dispositif d'éclairage
US8896237B2 (en) 2010-03-17 2014-11-25 Koninklijke Philips N.V. Method and device for driving a gas discharge lamp
US9078308B2 (en) 2011-03-31 2015-07-07 Litonics Limited Lighting device
US9357609B2 (en) 2011-03-31 2016-05-31 Litonics Limited Lighting device
US9363871B2 (en) 2012-05-04 2016-06-07 Litonics Limited Lighting device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG166703A1 (en) * 2009-05-29 2010-12-29 Hui Wing Hong Dimmer system and method
TWI458390B (zh) * 2011-12-09 2014-10-21 Gio Optoelectronics Corp 發光裝置
US10159122B2 (en) * 2012-06-22 2018-12-18 City University Of Hong Kong System and method for emulating a gas discharge lamp
DE202013004107U1 (de) * 2013-04-29 2013-05-10 Osram Gmbh Retrofit-Lampe

Citations (1)

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Publication number Priority date Publication date Assignee Title
WO2000021342A1 (fr) 1998-10-01 2000-04-13 Inotec Gesellschaft Für Verkaufsförderung, Innovation Und Technik Mbh Configuration de circuit destinee au fonctionnement a faible consommation d'energie d'un tube fluorescent

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Publication number Priority date Publication date Assignee Title
WO2000021342A1 (fr) 1998-10-01 2000-04-13 Inotec Gesellschaft Für Verkaufsförderung, Innovation Und Technik Mbh Configuration de circuit destinee au fonctionnement a faible consommation d'energie d'un tube fluorescent

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011009423A1 (fr) * 2009-07-21 2011-01-27 Paetzold Andre Corps d’éclairage
CN102550127A (zh) * 2009-07-21 2012-07-04 安德烈·佩特佐尔德 发光体
US8896237B2 (en) 2010-03-17 2014-11-25 Koninklijke Philips N.V. Method and device for driving a gas discharge lamp
WO2012131367A1 (fr) * 2011-03-31 2012-10-04 Litonics Limited Dispositif d'éclairage
US9078308B2 (en) 2011-03-31 2015-07-07 Litonics Limited Lighting device
US9307599B2 (en) 2011-03-31 2016-04-05 Litonics Limited Lighting device
US9357609B2 (en) 2011-03-31 2016-05-31 Litonics Limited Lighting device
US9363871B2 (en) 2012-05-04 2016-06-07 Litonics Limited Lighting device

Also Published As

Publication number Publication date
US20090058312A1 (en) 2009-03-05
WO2007004190A3 (fr) 2007-05-03
EP1905282A2 (fr) 2008-04-02
JP2009517803A (ja) 2009-04-30

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